The Fabrication and Performance of CVD Diamond-Based X-Ray Detectors

Abstract:

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In this study, X-ray detectors with coplanar metal-semiconductor-metal structure, were fabricated employing high quality chemical vapour deposited (CVD) diamond film grown by a direct current arc jet plasma system. In which the electrical contacts with dimension of 25 µm in width with a 25 µm inter-electrode spacing, were patterned on the growth side of the diamond film using lift-off technology. The performance of the fabricated detectors was evaluated by steady-state X-ray illumination. The photoconductivity of the diamond detectors was found to linearly increase with increase in the X-ray photon flux. This demonstrates that high quality CVD diamond can be used for X-ray detectors.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3605-3610

DOI:

10.4028/www.scientific.net/MSF.475-479.3605

Citation:

S.G. Wang et al., "The Fabrication and Performance of CVD Diamond-Based X-Ray Detectors", Materials Science Forum, Vols. 475-479, pp. 3605-3610, 2005

Online since:

January 2005

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Price:

$35.00

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